Can cleaning and sterilizing apparatus



June 10, 1930. v M. PEARSON CAN CLEANING AND STERILIZING APPARATUS 2 Sheets-Sheet 1 FIG. 3

INVENTOF? MFIFITIN PEFIRSON FIT TO NEMS Filed Jan. 13, 1927 June 10,1930. M. PEARSON 1,763,321

CAN CLEANING AND STERILIZ ING APPARATUS Filed Jan. 13, 192'? 2' shexs-sheet 2 I NVENTOF? MFIRT/N PEFIFLSON FITTOHNEYS Patented June 10, 1930 UNITED STATES PATENTQFFICE 1 ARTIN rnnnsomcr nonnrnsnnrn, MinnEsorA, AssIenoR TO PEARSON MANUFAC- {TUBING COMPANY, Il TG., on BOBBINSDALE, MINNESOTA, A CORPORATION or MIN- NESOTA' 1 CLEANING AND STERILIZING APPARATUS Application filed January 13, i927. Serial No. 160,884.

This invention relates to improvements in can cleaning and sterlh-zing apparatus and is designed as an improvement over the of substantially U-shaped formation and a having its legs connected together by a web extending substantially the full length thereof, and, further having a vertical wall or shield arranged at the receiving and discharge ends of the generator cooperating with the web and the inner side walls of the legs to provide means for confining the heat to the generator to increase the efiiciency of the apparatus. r

water thereto, the other leg of the gener-- A further ob'ect is to provide a can clean,-

; e p ing andsterilizing apparatus comprising a water receptacle having a relatively larger tank arranged adjacent thereto and having a U-s'haped horizontally disposed Steam generator arranged beneath the receptacle and I tank, the receptacle having a connection with one leg of the generatorfor supplying ator having a steam discharge pipe leading therefrom to a nozzle suitably positioned to deliver steam to the interior of a can for sterilizing purposes, said generator having the dual function of supplying steam for sterilizing cans and other utensils and also for heating the water in the receptacle and tank. a r V o d furtherobject is to provide a can cleaningyfand sterilizing apparatus comprising alwater receptacle and tank having fiat bot toms, beneath which a steam generator is arranged over asuitable heating means, the waterreceptacle having a connection with the generator for supplying water thereto,

l a which connection is v a for preventing the steam from entering the Water-pipe, l

, Other objects-of the invention reside in the general construction of steam generator the manner of securing the generator provided with means to the bottom of the water receptacle, whereby an air space is providedtherebetween; themeans provided for confining the heat to the generator to increase the efiiciency of. the generator; the pronged steam discharge nozzle whereby a cover or other receptacle may be placed over the nozzle without interrupting the flow of steajm therefrom; the particular method of connecting the water supply pipe to the generator, and, in the duct provided in the nipple cleaning and sterilizing apparatus.

Other objects of the invention will appear from thefollowing description and accompanying-drawingand will be pointed out in the annexed claims. e r In the drawings there has been disclosed a structure designed to carry out the various objeets of the invention, but it is to be understood that the inventionv is not con:- fined to-the exact features shown, as various changes may be made within the scope of the claims which follow. e t In the accompanying drawings forming par-tof this specification: p

Figure lis a longitudinal sectional view on the 'line1 1 of Figure 2;

Figure 2 is an end elevation of Fiugue 1; Figure 3 is a detail sectional view on the line 33of Figure 1;

Figure 4 is an enlarged plan view of the generator removed from the apparatus;

Figure 5 is a detailsectional View showing the water supply pipe connecting the,

steam in the water supply pipe.

The apapratus featured in this invention comprises a water receptacle 11 and a tank "12 separated by a partition 13 as shown in Fi ured;

recepta'ple :and" tank; are mountedlupon; a suitable" frame structure -1i, shown 7 11 31g ures laid-21; A can support "15 1s 'PI'OVldQd.

15 shown in' 1 dotted li-nesl i i? feature oft-his i iiivehtibn resides 1n; the

: construction ofthef steam generator, mount- 1 j edibeneeth the; receptacle ll -andfltank 12. This gerieratoira V is substa tia lly, 1Ushape d 15 in form'fand "-comprises" 1egs* 119; conheoted h e ifltitll ii'r pp fp i s by a W of the '1egs. itelongaltedfopening 21 is H boltf22j passesthrough this gWaShQI', I A Qwallf i .1, oounectsl tog'ether; the intake. and the disehar'ge j ends of the; .leg' members 19 and is? errangedg'at' righteiigles to jthe gv veb 20;

, central portion of the'generator fl The-upa 1- per arginal jedgef24j of the Wa11f23extnds abov e'the top of 'the'leg members 119 1 ,35 nd the top 0 7 1 thefweh 20 so as tor'engage iu spacing-the gener'ator froni i the -hottorh V generato above? describe f1,, the ha't'iimQ pinging e' s ga n tf {f m l blefb 'nli ie 't-2fip ill he ie l fined' ne h-l he r atop; resulting gilrijlndl e rapid generation 7 of isteemg'f generator;jsflintegrefly fm d of s 'me a j s showni-iniiE fro mg the v discharge leg 1 off the; generator 1 n erk i fiesia apte t e age device i suoh as .a jean Cover; for the-'fpur pose of spacing it-Qfrorn, the nozzle discharge take le pf the geheratorwith the Waterie:

t acle to theggeherator; 5

hin the;meaus;pro vide ifforprewielitihg ithe reA dra iu-plug is providedfihf J l p [the tank 12 for draining the contents; The ,Suoh means 1 1s shown lnf'Flgure {7.5 A

"of the intaliefleg 'ofjthe 'geuerator'and-is' [iiiternally' hKG flfd d to receive the rendxof'; at one {side' of the receptacle 111 and; has, {a V c alliopen gflfi he n benea which a he *dependingffunnell? is arranged; Thesup; iport 15..is'jadaptedtoreceive ajcan 18; as H v p I p 7 theendthereofL'"Anductorjport 'ifi ls pro=- .20,extending, substantiellyfthe. run" leilgth be disoharged- "from the; Iioz zle "2 9," posi. Z

"utilizingfell of-the stesiinrlfor cleaning and SterihZ ing purposes; reduein'g' T38 is in terposedu in the "pipe 3 said Wall and webfl-eo-opereting- With th6 7 leg members {1 9. tov confine the: heat to the Q h pply" bi erif e g-lthe' generator ,iis

5 the bottom of the "Witter areCept'aele; and and byi thefiljlt'ensity of; ithe -healt ot the j burner r, of-jsaiijoll reg'zjepttole,' By 7 constructing the 4 endfi. stee'ml discharge pi p'eiZ'Zleald s ethd hfgtsfits upper; enid 28 positioned zivithin f the-opening. 16in the cansupport @1155 A nozzle 29} is terminally mounted" upon the pipe "28, and is --p r ovide,d with; upstanding *be fi at' dltO to] permit free; discharge of ste'afii from the Iiozz1e,,. when a., Cover} or; other artiele r in h o wt we r rqmj h r 1 W ":lgen'erat orbeneath the re'ceptaele'ihaviugYa Auothen :ffeature; of; the invention; resides st em frem z fie tiv gtthe* et r s p x rpipe 31 ahd oreatifig" aback pressure thereinr threadedbushihg :33 is mounted intheend videid in thei bottom wallfflofathe ippl EA r and establishes}Communication between-- the 5 supply pipe31'iand theinterior ofthe generator.: flheidisc harg'e 'end of the duct 36.], is normally below. the level "of the. water in L e r t sasl h n n Fi rfi, t by preVenti-n'gisteam 7 fromentering the Water supplyfpipefll, This. isga-n' import tent feeturzj'es itjearlsesfell of the steam to 1 U tioned abovev theeanjsupportg15 thus l s h siefiranls v I sk 39 i te d t r in Q PIOVidQEQw for draining surplus wetei ifrom the generaltorq l9fin the eventthat t atterv aeeideng. V tallyi becomesgflooded,

f]; In} operation;Lweteri;is zdm'i-ttedfi-t'q "the generator byhflopeniugtheg valve 32 after t wh h et em en b rner. "w vaporize the vvaterflri 1 the; 5I I13I71I1QII; similarlto lthe function of mammary flash-boiler,

- controlled byrjthe valve 32," anohg is governed Drts jf b ityl to gtr ins orm KtheY W Q i-i t steam; The ;top awall of the generator, in; "e udin th ie tm wa la-20, i s lsp c ed from the bottoms of .t;he -reoeptao1e v ja'nd tank, Ea Y shown rl-gure 1 to proyjide tanf air-Cir eul'atjhgpassage; therebetween to prevent t the ffb oiler, from damaging {the bottoms of .the receptfede "and 1 tank as fl result of: eXCessite hea t; Ahousing ;3f7',- proyides ajclosure K1 v Jfo r the steam: geuerator and alsojthe burner 1 5', :fihf y cqnfi n' "th P t :t0 the I burner -i idi the b ttqmslthsre ep jasl ill a tank 12, The. 'maj or portion" ofthe ge'nerator 7 being 7 arrangedbeneath the. Water ire- L cieptaclej ll, the waterr COntfiiIi ed' thereiniygill 7 e, r e lativ ly i t emp as compared to the waiter" Contained inithe ,r tank-I2. ;The"'generator; therefore also 1m; tions col-preheat the-water delivered there'- r h to, thereby:jrrcreasing iits lefliciencyias steam generator." E olai m -asmywinvention:7; 11" I l"{f 1..,-A n"apparatus Qffhhe .elass dese hed 3 comprisingyafiweter r egpeacle; a support to a'ycauihaving;fan: opening" therein; 1 a lstea iv31vpontr011 3d communication with the receptgc le said:generetor. comprising legs cj'oh netedetzorie endtoiorfii eyush ped strut;

, tending beneath the bottoms of the generator legs to provide a shield adapted to congenerator, and the upper a marginal edge of the wall extending above ture, and a Web connecting together said legs and cooperating therewith to form a heating chamber.

2., An apparatus of the class described comprising a water receptacle, a can support having an opening therein over which the can is positioned, a steam generator arranged beneath the watenreceptacle, heati other leg ing means beneath the erator being U-shaped in form and having a web connecting together its legs substan tially the full length thereof, a wall connecting together the intake and discharge ends of the legs and arranged at right angles to said web, said wall and web cooperating with the legs to confine the heat to the central portion of the generator.

3. An apparatus of the class described, comprising in combination, a water recepa support adapted tacle having a flat bottom, to receive a can, a U-shaped steam generator arranged'beneath the water receptacle in close proximity thereto, a web connecting together the legs of the the full length of the legs, heating means beneath the generator, a vertical wall between the intake and discharge ends of the generator legs, a valved intake connecting the receptacle with one of the generator legs for supplying water to the generator,

and a steam discharge pipeleading from the and connectedwith a steam discharge nozzle positioned in the can support.

4. An apparatus of the class described including a horizontal steam stantially U-shaped in form, a web connecting together the upper portions of the legs fine the heat to the to, a steam a vertical wall at one end generator having its lower edge exof the generator, of the the tops of the legs and the connecting web therebetween and generator from the receptacle bottom.

5. An apparatus of the class described,

comprising in combination, a water receptacle, a relatively larger tank adjacent there generator beneath the receptacle and tank, means for heating the generator,

i of water to the to receive a can,

a water supply pipe connecting the receptacle with ing a valve therein for controlling the flow generator, a support adapted a discharge nozzle positioned above the support, a nipple terminallyprovided on' said water supply pipe and extending into the generator and having its end closed, a dis- I charge aperture in the bottom wall of the nipple communicating with the interior of generator, said gengenerator at theirupper portions and extending substantially generator sub-n adapted to engage the bottom of the water receptacle to space the one legof the generator and havi a steam discharge pipe leada, ing from the other leg of the generator to i '60 the generator, so as to lie below the normal level of water in the generator to provide a seal for preventing the escape of steam through the water supply pipe.

6. An apparatus of the class described including a water receptacle, a steam generator, beneath the receptacle, means for heating the generator, a, bushing terminally mounted in one leg of the generator, a water supply pipe having one end connected with the bushing and its other end with the water receptacle for supplying water to the generator, a nipple also secured to the bushing and extendinginto the generator, a threaded plug terminally mounted in said nipple, an aperture in the wall ofthe nipple establishing communication between the water sup-- of the generator,

ice I 

